Millions of passengers hit in worst-ever airline data hack

Cathay Pacific Airways said a hacker accessed personal information of 9.4 million customers, becoming the target of the world’s biggest airline data breach.

The Hong Kong-based carrier disclosed the unauthorized access late Wednesday, seven months after discovering the violation. While passports, addresses and emails were exposed, flight safety wasn’t compromised and there was no evidence any information has been misused, it said.

Earlier this year, British Airways and Delta Air Lines reported that personal and financial information of hundreds of thousands of customers was illegally accessed.

Officials said the breach also included 245,000 Hong Kong IDs, 403 expired credit card numbers and about 860,000 passport numbers.